Pieris napi
In 3 days ~50% in a week ~80%
The green-veined white (Pieris napi) is a butterfly of the family Pieridae. A circumboreal species widespread across Europe and Asia, including the Indian subcontinent, Japan, the Maghreb and North America. It is found in meadows, hedgerows and woodland glades but not as often in gardens and parks like its close relatives the large and small whites, for which it is often mistaken. Like other "white" butterflies, the sexes differ. The female has two spots on each forewing, the male only one. The veins on the wings of the female are usually more heavily marked. The underside hindwings are pale yellow with the veins highlighted by black scales giving a greenish tint, hence green-veined white. Unlike the large and small whites, it rarely chooses garden cabbages to lay its eggs on, preferring wild crucifers. Males emit a sex pheromone that is perceptible to humans, citral, the basic flavor-imparting component of lemon peel oil.
Some authors consider the mustard white and West Virginia white of North America to be conspecific with P. napi or consider P. napi to be a superspecies. Despite this, the American butterflies, unlike P. napi, cannot successfully... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Biebrza National Park | 🇵🇱 Poland | |
| 2 | Białowieża National Park | 🇵🇱 Poland | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 4 | Aigüestortes National Park | 🇪🇸 Spain | |
| 5 | Mercantour National Park | 🇫🇷 France | |
| 6 | Triglav National Park | 🇸🇮 Slovenia | |
| 7 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 8 | Pyrénées National Park | 🇫🇷 France | |
| 9 | Picos de Europa National Park | 🇪🇸 Spain | |
| 10 | Cévennes National Park | 🇫🇷 France | |
| 11 | Ordesa y Monte Perdido National Park | 🇪🇸 Spain | |
| 12 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 13 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 14 | Wadden Sea National Park | 🇩🇪 Germany | |
| 15 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 16 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 17 | Ecrins National Park | 🇫🇷 France | |
| 18 | Vanoise National Park | 🇫🇷 France | |
| 19 | Tatra National Park | 🇸🇰 Slovakia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Birmingham | 🇬🇧 United Kingdom | |
| 2 | Helsinki | 🇫🇮 Finland | |
| 3 | Liverpool | 🇬🇧 United Kingdom | |
| 4 | Manchester | 🇬🇧 United Kingdom | |
| 5 | Turin | 🇮🇹 Italy | |
| 6 | Kharkiv | 🇺🇦 Ukraine | |
| 7 | London | 🇬🇧 United Kingdom | |
| 8 | Prague | 🇨🇿 Czechia | |
| 9 | Stockholm | 🇸🇪 Sweden | |
| 10 | Copenhagen | 🇩🇰 Denmark |
Possible
About 20% of wildlife watchers report a Green-Veined White sighting in Snowdonia National Park on a given day, based on 42 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 36th most-seen of the 387 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
May
In that month about 40% of wildlife watchers report a Green-Veined White in Snowdonia National Park on a given day, against under 5% in October to March, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Green-Veined White sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
7th of 19
Of the 19 parks where we can rate Green-Veined White sightings, Snowdonia National Park ranks 7th at about 20%. The best odds are in Biebrza National Park (Poland, about 40%), Białowieża National Park (Poland, about 30%) and Bavarian Forest National Park (Germany, about 30%).
Same genus: Pieris
The closest relatives of the Green-Veined White that you can see in Snowdonia National Park (genus Pieris, Garden Whites) are Large White (about 20%) and Small White (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Green-Veined White is recorded against all the insects logged in Snowdonia National Park (42 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
